Llandudno — Water Temperature, Sea Conditions & Trends

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

Water temperature in Llandudno rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.

According to our forecast, Water temperature in Llandudno will be 13.5°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Llandudno is a classic Victorian seaside town on the North Wales coast, facing Conwy Bay and the wider Irish Sea. Its coastal waters are relatively cool year-round and vary with the seasons and local weather. Typical winter sea temperatures are around 6–8°C, spring usually warms to roughly 8–12°C, summer peaks at about 14–18°C, and autumn generally sits between 10–14°C. Local conditions can change day to day because of tides, onshore winds and currents, so recorded temperatures may fluctuate from these averages and will feel colder in windy or overcast conditions.